Veterinary dental float.



PATENTED 00T. -1`s J. E. MAELAEEY. VETERINARY DENTAL ELoAT.

APPLITION FILED MAY Z9, 1903.

Eo loD'EL.

A TTOHNE Y6.

UNITED STATES Patented October 15, A1903. Y

PATENT OFFTCE.

VETERINARY DENTAL FLOAT.

sPEcIFTcATIoN forming part f Letters Patent No. 741,519, dated Ocwber 13,1903- l Application led May 29, 1903. Serial No. 1597.289. (No model.) l

To a/ZZ whom t may concern.'

Be it known that I, JAMES R. MAEAFFY, rev siding at Wilmington, in the county of Newcastle and State of Delaware, have invented a new and Improved Veterinary Dental Float, of which the following is a specification.

My invention seeks to provide an improved construction of veterinarydental iioat or tool of that character including a handle or supporting means, file or cutter devices mounted thereon for smoothing and leveling the teeth of horses, and means coperatively joined with the support or handle portion for actuating said cutter or leveling devices, and my said invention in its generic nature comprehends a simple and economical construction of dental appliance of the character stated in which the tile of leveling-member-actuating means is especially adapted for connection with an ordinary-foot power driving` mechanism, which includesa exible shaft, whereby the tool per se can be conveniently held by one or both hands and the same operated by foot-power.

In its more complete nature my invention embodies a tubular handle or supporting body, a le or cutterY member reciprocably mounted on one end thereof, a rotating member adapted to be coupled to and actuated by a flexible drive-shaft, a means cooperatively joined with said rotating member for transferrin g a reciprocal motion to the file or cutter; and in its more subordinate features my invention consists in certain details of construction and peculiar combinations of parts, all of which will herei nafter be fully described, and specifically pointed out in the appended claims, reference being had to the accom panying drawings, in which- Figure l is a perspective view of my im. proved dental tool. Fig. 2 is a longitudinal section of the same, the parts being especially arranged for operating on the front teeth of a horse. Fig. 3 is a cross-section taken`0n the line 3 3 of Fig. 4. Fig. 4 is a plan view of the form of file or cutter device Yshown in Fig. 2. Fig. 5 is a longitudinal section of a modified form of my dental implement especially adapted for filing or cutting the molar or back teeth of a horse. Fig. 6 is an enlarged section of the rotary cam and the casing .therefor shown in Fig. 5. Fig. 7 is a plan View of the file or cutter devicesV shown in Fig. 5, and Fig. 8 is a cross-section of the same on the line 8 8 of'Fig. 5.

In the practical application of myinvention Iprovide a supporting body or handle, which is a tubular shaft 1, exteriorly threaded at both ends. At the front end of said shaft is mounted a file or cutter holding frame, which in the form of my invention illustrated in Figs. l to 4 consists of a dat body 2, having a longitudinal socket or channel-way 2a in the Lipper face, the side walls of which are formed with dovetailed grooves 2 2 to receive the dovetailed sides 3X 3X of the file or cutter member 3 in the nature of a iat 'blade having teeth orserrations on the opposite faces, preferably of different texture, whereby the said member when reversibly adjusted will present a fine or coarse lcutting or filing surface, as lthe condition of the teeth to be'treatedy may make desirable, and to provide for readf ily reversing the said member 3 the inner end of the channel-way 2n is open to permit the said end member being slid endwise therein, as will be clearly understood by reference to Fig. 2, from which it will also be noticed the member 3 is so positioned with respect to the bottom of the channel-way 2a that the teeth at the lower side are in a plane above the bottom to hold them from rasping or scraping thereon during the reciprocable motion vof the cutter or file.

, At the inner end the frame 2 has an integral pendent portion 2, the inner end of Which is in the form of a hub c, centrally apertured, as at c', and formed with a threaded socket to t on the outer end of the tubular handle 1, and the outer end of the portion 2C forms a circular socket 2d, with which the aperture c' communicates.

Within the socket 2d is rotatably held a cylindrical block 4, provided with an S-shaped cam-groove 4fL in its peripheral face to receive the shank 5a of a screw-stud 5, mounted on the inner end of the member 3.

6 designates a cylindrical stem rotatably mounted within the tubular handle l, the

outer end of which extends through the aper-V IOO yond the inner end of the handle l into the socket-piece 7, provided with a hub 7, having a threaded aperture whereby to tit on the inner end of the said tubular handle 1, as clearly shown in Fig. 2, and the said inner end 6a of the stem has a collar 8, provided with an eye Sa to receive the loop end 9 of the iiexible drive-shaft 9, which in the practical arrangement of my invention connects with and is driven from a foot-power lathe in any well-known manner.

The cutter-piece 7 at one end of the tubular handle lt and the cam member 4; at the other end thereof serve to hold the stem 6 from unnecessary longitudinal play.

So far as described the manner iu which my dental implement operates is best explained as follows: The operator grasps the tubular portion with one or both hands and holds the Same steady with the iile or cutter end over the front tooth or teeth to be treated, it being understood that when power is applied in any well-known manner to rotate the dexible drive-shaft 9 the continuous rotary motion imparted to the stem (i within the handle will through the medium of the cam member 4 reciprocate the file or cutter member 3 on it-s holding-frame.

By reason ot' the peculiar correlative arrangement of the file or cutter, its holdingframe,and the actuating means shown in Figs. l and 2 it is difficult to conveniently use the said arrangement of my invention for trimming the back molar teeth, and to provide for properly treating the said back molar teeth as conveniently as it is possible to treat the front teeth with the form ot' my implementshown in Figs. l to et I employ a slightlymodiiied arrangement ot myinvention, which is illustrated in Figs. 5, G, 7, and S. In this latter form the file or cutter member 3 is disposed in the plane ot' the longitudinal axis of the handle or body l, and the said member 3 is also slidably supported in the frame 20, which terminates at the inner end in an apertured hub 20, adapted to screw onto the outer end of the member l, and the outer end of the stem 6 slides in the aperture of the hub 20 and has a threaded nipple 6C, that engages a threaded socket in the inner end of the cutter or file member 3, as clearly shown in Fig. 5. In the said modifiedform the inner end of the body l carries a hollow socketpiece l0, having a threaded hub for engaging the threaded end of the member l, and Within the said socket is held the rotary cam ll, having the S-shaped groove ll, with which connects a stud-pin l2, fixedly held on the socket-piece l0, and the cam ll has a threaded socket lll to receive the threaded end 13a ofthe eyepiece 13, with which the flexible drive-shaft 9 connects, and the said socket llb also receives a headed end 6d of the stem 6,0n which the cam member 12 freely rotates and which by reason of its cam-slot moves longitudinally within the socket l0, i

and thereby reciprocablyactuates the stem 6 within the tubular handle and imparts the desired rcciprocation to the file or cutter member 3.

Since my improvedimplement can be held in and manipulated with one or both hands of the operator, who drives the same by footpower, it is manifest that no unnecessary bearing or steadying of the implement within the horses mouth is required, and as the operator has both hands free he can eonven iently adjust the tool with respect to the teeth being treated and without loosening, wrenching, splintering, orotherwise injuring the teeth.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. A veterinary tool of the character described, comprising a handle, a file-holder detachably secured to one end thereof, said holder having guide-flanges, a le or cutter member mounted in said holder in engagement with said guide-flanges and reciprocably slidable therein, means for imparting reciprocable motion to the file or cutter member mounted in the file-holder, said means including a flexible rotary drive-shaft and counections cooperatively joining the said driveshaft with the file or cutter member mounted within the holder for transmitting a reciprocable motion to the said cutter or file from the rotary drive-shaft, for the purposes specified.

2. A veterinary tool of the character described, comprising` a hollow handle, a fileholder having a hollow h ub detachably connected to one end of said handle, said fileholder having guide-flanges, a file mounted within said file-holder having its edges in engagement with said guide flanges and adapted for reciprocable movement within said holder,a drive-shaft mounted within and inclosed by said hollow handle, a cam member mounted upon one end of the drive-shaft within the hollow hub of the file-holder, said cam member having a cam-groove, a stud detachably connected to said tile and projected into the said cam-groove, a hollow hub connected to the other end of said hollow holder, a check-nut secured to said driveshaft within said last-named hollow hub,said check-nut having an eye portion adapted to receive a flexible drive-shaft, for the purposes specified.

3. In a veterinary implement Of the character stated, a handle, a longitudinally-extended guideway on the front end thereof, a cutter or file member reciprocably slidable and reversibly mounted in the said slideway. a rotary stem mounted on the handle and connections, including rotary cam devices c0- operativelyjoined with the file or cutter member for imparting reciprocable motion thereto as the stem is rotated, for the purposes described.

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4. In a veterinary implement of the character stated, the combination with a supporting member including a hollow tubular handle, and entirely inclosed thereby, a stem rotatable within the said handle, a guide extended' longitudinally from the front end of the handle, a cutter or ile member reciprocably slidable in the said guide, a cam mounted on the stem provided with a cam-slot, a stud on the file or cutter engaging said camslot, and means for imparting a rotary'motion to the stem, substantially as shown and described. p

5. An improved veterinary implementof the character described, comprising a tubular handle, a frame detachably secured to the front end thereof and extended lengthwise therefrom, said frame including an open-top gnideway, and a centrally-apertured hub for engaging the forward end'of the handle, a stem rotatable within the handle, a disk mounted on the forward end thereof having an S-shaped groove, a stud, a socketed hub mounted on the opposite ends of the tubular handle, a hub member mounted therein and attached to the outer end of the rotary stem, and a flexible rotary drive-shaft connected to the said hub, all being arranged substantially as shown and described.

6. In a veterinary implement of the character described, the supporting-handle, a rotary stem mounted in the said supportinghandle, a cam-disk carried by the saidstem, an extension on the front end of the handle, said extension having an open-top guideway provided with guide-grooves in its opposite sides, a cutter or le blade having serrations o n its opposite faces and its edges shaped to slide in the grooves of the guideway, said grooves in the guideway being disposed relatively in the bottom of the guideway wherebyy to sustain the file or cutter with 'its lower edge ina plane above the bottom of the guideway, and connections between the cam on the rotary stem and the le or cutter member, all being arranged substantially as shown and for the purposes described.

7. A veterinary tool of the character described, comprising a tubular handle, a leholder detachably connected to one end thereof, said file-holder including a hub portion and a file-carrying portion, said file-carrying portion having guide-anges, a leor cutter member mounted in said le-carryin g portion with its edges in engagement with the guideianges and one of its iile-faces exposed, means for imparting reciprocal motion to the ile or cutter member, said means including a shaft passing through the tubular handle, a cam mounted within the le-holder hub and connected with the end of the shaft, a screw-stud rotatable within the handle,

secured to the ile andheld in engagementy with the cam and means for imparting a rotary motion to the shaft, for the purposes described.' 4

8. An improved veterinary implement of the character described, comprising a tubular handle, said tubular handle being externally threaded at each end, a frame having a threaded portion adapted to be screwed'on the end of said shaft and extended lengthwise therefrom, said frame including an open-top guide- Way and a centrally-'apertured hub, said opentop guideway including guide-anges, a stem a cam member mounted on the forward end thereof having an S-shaped groove, a file adapted for reciprocal movement in said open-top guideway with its edges in engagement with the guideflanges thereof, said file having a plurality of file-faces and-being so arranged that but one file-face is exposed, said le having a threaded aperture, a stud having a threaded portion adapted to be secured into said threaded aperture and projected downward into the S- shaped groove ofl the cam, a hollow hub mounted on the opposite end of the tubular handle, a drive-shaft havinga threaded portion at one end, and a connecting member on the said threaded portionwithin the hollow hub on the end of the handle opposite the detachable frame and a flexible rotary driveshaft connected to the said connecting member for the purposes specified.

9. In a veterinary implement of the character describeda hollow handle l threaded at both ends, a hollow member 7 having a threaded portion 7a, and adapted to be sc cured to the threaded end of the hollow hanf dle l, a file-carrier 2 including a hub portion 2 having a screw-threaded portion adapted to screw onto the other end of the handle l,

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said file-carrier including a rectangular guidel way arranged parallel with the hollow ha'n dle and having guide-anges 2, a le member mounted within said file-holder and having its sides in 'engagement with the guideflanges, said iile including an upper and lower lesurface, and a threaded aperture, a rotary drive-shaft 6 mounted within said hol- IIO low handle 1 and having a cam member 4L at' 

